The vast Universe!
The Way of Aiki to become
The light of all mankind
Opening all the world.

Put the active principle (yo) into the right hand
Turn the left into the passive (in)
And so guide the adversary.

With "Eiiii" cut him down!
That enemy that lurks within
Instruct him with "yah"
Guide him with "Toh".

Pour your spirit and heart
Into daily technical training
To approach the many through a single principle
This is "The Way of the Fighting Man".

Always and always
Pour yourself into technical training
To face the multitude as if it were one
Is the Way of the Shugo-sha.

First master the techniques of Aiki
The way of the Gods
Then no enemy will ever attack.

Though we may honor it
We can never praise enough
The godly technique of the Way of Aiki
The godly technique of the small gate.

The purification techniques (misogi-waza)
I have learned from God and Revelation
Aiki is built by the god(s).

Masakatsu and Agatsu
By Aiki with the spirit of the Godly Parent
Save and invigorate
Your own body and soul.

The Way of the Gods!
Give in to the life of the Universe of
Heaven and Earth
Thus draw nearer and nearer
To a spirit who serves the Godhead.

The Way of our Gods!
The clear and those red and white
The Way of Aiki is one of the divine techniques
To which only a narrow gate does lead.

Mobilize all (your) powers through Aiki
Build a beautiful world
And a secure peace

Even the most powerful human being
has a limited sphere of strength.
Draw him outside of that sphere
and into your own, and his strength will dissipate.

"You must realize this!
Aiki cannot be captured with the brush
Nor can it be expressed with the mouth
And so it is that one must proceed
to realization."

Blend with (ki-musubi) the
Universe of Heaven and Earth (tenchi)
Stand in the center (of all)
In your heart take up the stance
Of "The Way of the Mountain Echo." (Yamabiko)

Blend the ki within the self (ki-musubi)
Stand erect in the very center
Polish the spirit
mind (kokoro)
"The Way of the Mountain Echo".

In the self-mind standing always
In the very center of it I do live
The stance (kamae) of Love is
"The Way of the Mountain Echo.

Aiki!
The root of the power of love
A love that must grow ever broader.

This world is built up
Of living-life (iki-inochi) of the breath of life (iki-inichi) and the
saving power of the Universal (iki-inochi)
All spinning and flourishing
The jewel-like Aiki of the Spirit (tama-no-aiki).

Left and Right
Cut or parry
Discard all thought of them
The human spirit must rush instantly in!

Aiki!
A way so difficult to analyse
(But one needs only to) follow
The natural rotations of the
Heavens.

Aiki is the power of harmony between all things
Polish it ceaselessly
You people of the Way.

The honored techniques of Ki
May manifest the spirit of the Great Snake
Or that of Bees
To make such spirits (tama) appear
Is the Way of Takemusu.

The precious techniques of Ki!
They, the spirits (tama) does subdue and pacify
IN these techniques of misogi purification
Please direct us, Oh gods of Heaven and Earth!

In these teachings listen most
To the rhythm of the strike and thrust
To train in the basics (omote)
Is to practice the very secrets of the art.

Q: Did O Sensei ever define Aiki clearer than he did in his doka?

and; as per this thread; At some point descriptions of a thing, and or it's properties, methods or connections are a workable 'definition', are they not? I was puzzling at that prior comment.